Well, I don't know if they really banned it but I cannot login either now... Also tried the manual payout request since the automatic one was not working.
There usually a pretty solid pool, I cannot login either, I think they are trying to fix the manual and automatic payment process.
MPOS (The standard open source pool front-end) has a set of triggers that automatically locks accounts in certain situations. The most common is after a certain number of failed log in attempts, but there can be a host of custom reasons that the front-end could have triggered a lock. I won't speak to that pool specifically but to say they have been around a while and there have been some complaints, most of which seem to always be resolved in one form or another. I wouldn't expect there to be any scam a-foot. I would send a support email and ask that your account be unlocked. It is a simple matter of clicking a check box in the back-end of the GUI.